format_postcode.md
In phsmethods: Standard Methods for Use in Public Health Scotland

Warning gives true number of values that don't adhere to format

Code
  format_postcode("g2")
Condition
  Warning:
  1 value has lower case letters these will be converted to upper case.
  Warning:
  1 non-NA input value does not adhere to the standard UK postcode format (with or without spaces) and will be coded as NA.
  The standard format is:
  * 1 or 2 letters, followed by
  * 1 number, followed by
  * 1 optional letter or number, followed by
  * 1 number, followed by
  * 2 letters
Output
  [1] NA

Code
  format_postcode(c("DG98BS", "dg98b"))
Condition
  Warning:
  1 value has lower case letters these will be converted to upper case.
  Warning:
  1 non-NA input value does not adhere to the standard UK postcode format (with or without spaces) and will be coded as NA.
  The standard format is:
  * 1 or 2 letters, followed by
  * 1 number, followed by
  * 1 optional letter or number, followed by
  * 1 number, followed by
  * 2 letters
Output
  [1] "DG9 8BS" NA

Code
  format_postcode(c("ML53RB", NA, "ML5", "???", 53, as.factor("ML53RB")))
Condition
  Warning:
  4 non-NA input values do not adhere to the standard UK postcode format (with or without spaces) and will be coded as NA.
  The standard format is:
  * 1 or 2 letters, followed by
  * 1 number, followed by
  * 1 optional letter or number, followed by
  * 1 number, followed by
  * 2 letters
Output
  [1] "ML5 3RB" NA        NA        NA        NA        NA

Code
  format_postcode(c("KY1 1RZ", "ky1rz", "KY11 R", "KY11R!"), quiet = TRUE)
Output
  [1] "KY1 1RZ" NA        NA        NA       
Code
  format_postcode(c("KY1 1RZ", "ky1rz", "KY11 R", "KY11R!"), quiet = FALSE)
Condition
  Warning:
  1 value has lower case letters these will be converted to upper case.
  Warning:
  3 non-NA input values do not adhere to the standard UK postcode format (with or without spaces) and will be coded as NA.
  The standard format is:
  * 1 or 2 letters, followed by
  * 1 number, followed by
  * 1 optional letter or number, followed by
  * 1 number, followed by
  * 2 letters
Output
  [1] "KY1 1RZ" NA        NA        NA